A green 6 kg ball is moving at 4 m/s. It collides with an orange 4 kg ball that is not moving (v= Om/s). After the
collision the green ball stops moving (v=0 m/s). What is the
velocity of the orange ball after the collision?

An electric current in a wire will push or pull on a permanent magnet. which statement best explains how an electric current creates an electromagnetic force on another magnet?

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates